Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8158400 | Journal of Magnetism and Magnetic Materials | 2013 | 5 Pages |
Abstract
Activated carbon was modified with γ-Fe2O3 nanoparticles, using the chemical co-precipitation technique and the carboxylic acid vapor treatment technique. Two magnetic composites were characterized and compared by Fourier Transform Infrared spectroscopy, X-ray diffractometry, vibrating sample magnetometry and nitrogen adsorption-desorption. Then the two materials were used to remove p-nitrophenol in water. The equilibrium data revealed that the Langmuir isotherm was better in fitting the experiment result than the Freundlich isotherm, and the sorption capacity of the nanocomposite made by the chemical co-precipitation technique was higher than that of the other one. We suggest that the chemical co-precipitation technique is a more efficient and practical method to produce magnetically modified activated carbon.
Related Topics
Physical Sciences and Engineering
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Condensed Matter Physics
Authors
Shuai Han, Feng Zhao, Jian Sun, Bin Wang, Rongyan Wei, Shiqiang Yan,